MAGNETIC RECORDING MEDIUM
PURPOSE:To provide the magnetic recording medium having excellent heat resistance A, wear resistance B, electromagnetic conversion characteristics C and drop-out characteristic D. CONSTITUTION:The back coat layer of the magnetic recording medium constituted by having a magnetic layer on one surface...
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| creator | KOZUMI TETSUO |
| description | PURPOSE:To provide the magnetic recording medium having excellent heat resistance A, wear resistance B, electromagnetic conversion characteristics C and drop-out characteristic D. CONSTITUTION:The back coat layer of the magnetic recording medium constituted by having a magnetic layer on one surface of a nonmagnetic base and having the back coat layer composed essentially of nonmagnetic powder and a binder on the other surface contains a polyvinyl acetal resin which has >=55wt.% rate of acetalization and in which >=80wt.% of the accetalized part is polyvinyl acetal. |
| format | Patent |
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CONSTITUTION:The back coat layer of the magnetic recording medium constituted by having a magnetic layer on one surface of a nonmagnetic base and having the back coat layer composed essentially of nonmagnetic powder and a binder on the other surface contains a polyvinyl acetal resin which has >=55wt.% rate of acetalization and in which >=80wt.% of the accetalized part is polyvinyl acetal.</description><language>eng</language><subject>CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ; INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PHYSICS ; THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><creationdate>1993</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19930618&DB=EPODOC&CC=JP&NR=H05151555A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25547,76298</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19930618&DB=EPODOC&CC=JP&NR=H05151555A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KOZUMI TETSUO</creatorcontrib><title>MAGNETIC RECORDING MEDIUM</title><description>PURPOSE:To provide the magnetic recording medium having excellent heat resistance A, wear resistance B, electromagnetic conversion characteristics C and drop-out characteristic D. CONSTITUTION:The back coat layer of the magnetic recording medium constituted by having a magnetic layer on one surface of a nonmagnetic base and having the back coat layer composed essentially of nonmagnetic powder and a binder on the other surface contains a polyvinyl acetal resin which has >=55wt.% rate of acetalization and in which >=80wt.% of the accetalized part is polyvinyl acetal.</description><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</subject><subject>INFORMATION STORAGE</subject><subject>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</subject><subject>METALLURGY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>PHYSICS</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1993</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJD0dXT3cw3xdFYIcnX2D3Lx9HNX8HV18Qz15WFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8V4BHgamhkBoaupoTIwaABH0IB4</recordid><startdate>19930618</startdate><enddate>19930618</enddate><creator>KOZUMI TETSUO</creator><scope>EVB</scope></search><sort><creationdate>19930618</creationdate><title>MAGNETIC RECORDING MEDIUM</title><author>KOZUMI TETSUO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH05151555A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1993</creationdate><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</topic><topic>INFORMATION STORAGE</topic><topic>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>PHYSICS</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>KOZUMI TETSUO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KOZUMI TETSUO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MAGNETIC RECORDING MEDIUM</title><date>1993-06-18</date><risdate>1993</risdate><abstract>PURPOSE:To provide the magnetic recording medium having excellent heat resistance A, wear resistance B, electromagnetic conversion characteristics C and drop-out characteristic D. CONSTITUTION:The back coat layer of the magnetic recording medium constituted by having a magnetic layer on one surface of a nonmagnetic base and having the back coat layer composed essentially of nonmagnetic powder and a binder on the other surface contains a polyvinyl acetal resin which has >=55wt.% rate of acetalization and in which >=80wt.% of the accetalized part is polyvinyl acetal.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | MAGNETIC RECORDING MEDIUM |
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